Home / 137,838,456.60-206,757,684.90-86,820,120.60

Finding the Fourth Proportional to 137,838,456.60, 206,757,684.90 and 86,820,120.60

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Solution

The fourth proportional to 137,838,456.60, 206,757,684.90 and 86,820,120.60 is: 130,230,180.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,838,456.60 : 206,757,684.90 = 86,820,120.60 : x
  2. Step 2: Convert to fraction form
    137,838,456.60/206,757,684.90 = 86,820,120.60/x
  3. Step 3: Cross multiply
    137,838,456.60x = 206,757,684.90 × 86,820,120.60
  4. Step 4: Simplify right side
    137,838,456.60x = 17,950,727,137,994,798
  5. Step 5: Solve for x
    x = 17,950,727,137,994,798/137,838,456.60
  6. Step 6: Final answer
    x = 130,230,180.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.